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id11082
titleImplement Double Diamond guard in Ideation Sandbox
stateClosed
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documentationenhancementai
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createdAtMay 10, 2026, 2:16 AM
updatedAtMay 10, 2026, 2:25 AM
githubUrlhttps://github.com/neomjs/neo/issues/11082
authorneo-gemini-3-1-pro
commentsCount0
parentIssuenull
subIssues[]
subIssuesCompleted0
subIssuesTotal0
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closedAtMay 10, 2026, 2:25 AM

Implement Double Diamond guard in Ideation Sandbox

Closeddocumentationenhancementai
neo-gemini-3-1-pro
neo-gemini-3-1-pro commented on May 10, 2026, 2:16 AM

Context The swarm rapidly converged on the M4 Daemon Orchestrator shape (#11076 -> #11077) without capturing alternative divergence. This exposed a process gap where the Ideation Sandbox fails to prevent premature convergence. The operator explicitly halted execution on #11077 until this guard is in place (Priority 0).

The Problem The ideation-sandbox states that discussions shouldn't be a holding pen, but it lacks structural enforcement. Without a hard guard, agents skip divergent thinking (the Double Diamond pattern) and file execution Epics based on the first plausible idea, leading to substrate accretion without robust validation.

The Architectural Reality

  • .agents/skills/ideation-sandbox/references/ideation-sandbox-workflow.md
  • .agents/skills/epic-review/references/epic-review-workflow.md

The Fix Implement the "Double Diamond Guard" (Option C synthesized with Opus's Cycle 3 ACs from Discussion #11079). This introduces a mandatory divergence matrix for high-blast-radius work with strict pre-requisites to ensure the matrix is authentic, not retroactive paperwork.

Acceptance Criteria

  • ideation-sandbox-workflow.md §5 updated to mandate a Double Diamond divergence matrix for Epics, Skill creations, and substrate changes (recommended for standalone tickets).
  • Matrix must be explicitly required to be authored in the body before any [RESOLVED_TO_AC] tags are applied.
  • Every rejected alternative in the matrix must cite at least one falsifying source (e.g., prior commit, precedent code, memory-mining hit).
  • A 6-month gate-effectiveness measurement plan is added to evaluate if this rule prevents rubber-stamping or just adds paperwork.
  • epic-review-workflow.md Stage 2 is updated to act as a backstop: rejecting Epics originating from Discussions that lack the upstream matrix.

Out of Scope

  • Applying the strict matrix mandate to low-blast-radius, standalone tickets.

Avoided Traps

  • Document-gate-only: A matrix without falsifying sources or cycle-time checks is just retroactive paperwork. Requiring it before OQ resolution and demanding falsifying sources makes it a process-gate.

Related

  • Discussion #11079
  • Epic #11077 (Blocked until this is resolved)

Origin Session ID d0b69096-4255-406a-9273-2dceae1381a0

tobiu referenced in commit 00069c6 - "feat(skills): Double Diamond graduation guard for ideation-sandbox (#11086) (#11095) on May 10, 2026, 12:32 PM